Scissors



(No Model.)

. 0. A. S HULTZ.

SGISSVORS. No. 512,451.

Patented Jan., 9. 1894.

4 UNITED STATES PATENT OFFICE.

CARL A. SHULTZ, OF KANSAS CITY, MISSOURL' SCISSORS.-

SPECIFICATION forming part of Letters Patent No. 512,451, dated January9, 1894.

Application filed August 18 1892. Serial No. 443.460. (No model.)

To all whom it may-concern.-

Be it known that I, CARL A. SHULTZ, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented certain new and useful Improvements in Scissors, of whichthe following is a specification, reference being had to theaccompanying drawings, in which Figure 1 is a side elevation showing thescissors closed. Fig. 2 is a similar view showing the scissors open.Fig. 3 is a top or plan View of the cutting blades. Fig. 4 is a sideelevation of one of the cutting blades; and Fig. 5 is a detail, beingaside elevation of the forward end of the lever which operates thecutting blade shown in Fig. 4:.

My invention relates to scissors, and particularly to that class ofscissorsin which the cutting blades are designed for cutting articlesresting upon a table, such as for tailors use. Such scissors or shearsgenerally consist of a stationary blade and a movable blade operated bya disconnected lever. In scissors of this class as heretoforeconstructed,the construction and operation have been such that theoperator was unable to exert any lateral pressure on the movable cuttingblade, and therefore in cutting heavy cloth the cutting blades would'beapt to spring apart and fail to cut.

The object of my invention is to improve scissors of this class, and tothis end it consists in the specific features of construction and thecombination or arrangement of parts hereinafter described and claimed.

In the drawings, 1 indicates the stationary blade, which is providedwith a handle 2.

3 indicates the movable blade, which is pivotally connected near itsrear end to the blade 1 by a pivot 4. The blade 3 is provided on theinner side of its rear end with a recess 5 and with a pin 6 whichprojects into said recess, as shown in Fig. 3.

7 indicates a handle or lever, by means of which the movable blade 3 isoperated. The lever 7 is pivoted to the handle 2 or blade 1 by means ofa pivot 8, as best seen in Flgs. 1 and 2.

9 indicates a lug formed on the rear portion of the movable blade 3, insuch position as to engage the head of the pivot 8 when the the plate 3.The slot 10 is located forward of the pivot 8 and back of the pivot l,as shown in the drawings. It is also so placed that as the scissors areoperated it will cross a right line drawn between the axes of the twopivots 4 and 8, and when the slot is in line with the two pivots itsgreatest diameter will lie in the same line. By this arrangement, whenthe scissors are opened to their widest extent, the pin 6 will lie inthe forward portion or the slot 10; when the scissors are half Wayclosed, the pin will lie at the rear portion of the slot; and when thescissors are entirely closed it will lie at the forward portion of saidslot. By this arrangement the operation of the cutting blades 1 and 3may be very accurately controlled, and the two blades are prevented frommoving to a position at right angles to each other, which isobjectionable in that the correct and easy working of the scissors isinterfered with. It will be obvious that the slot 10 can be formed inthe movable blade 3 and the pin 6 located on the handle 7, withoutdeparting from my invention.

12 indicates a lug formed on the movable blade 3 near its rear end, andon the side next to the lever 7. The lug 12 is adapted to bear againstth e lever 7 forward of the pivot 8, and by lateral pressure on thelever 7 it may be made to bear with more or less forceagainst the lug,thereby throwing the blades 1 and 3 closer together. It will be noticedthat the lug 12 is on astraight line from the scissors point to thepivot 4, and when the blades are open this lug will be at its greatestdistance from the pivot 8 of the handle 7, while the lug will be nearestthe pivot when the blades are closed. The arrangement of the slot 10secures the greatest leverage when the blades IOC are nearly closed andthe arrangement of the lug 12 materially facilitates the operation ofcutting near the point of the scissors.

That which I claim as my invention, and desire to secure by LettersPatent, is

1. The combination with a stationary blade having a handle 2, and apivoted handle 7 having a slot 10, of a pivoted blade 3 having a pin 6and provided on its inner face with a lug 12 located in rear of the pin6,so that when the blades are open the lug 12 is at the greatestdistance from the handle-pivot and is nearest the latter when the bladesare closed, substantially as and for the purpose specified.

2. The combination with a blade 1 having the handle 2, and a pivotedhandle 7 having a slot 10, of a pivoted blade 3 havinga lug 12 andprovided near said lug with a pin 6 which point or lug arranged to exertlateral pressure upon the movable blade and moving toward the pivot ofthe handle as the scissors close and away from said pivot as thescissors open, substantially as described.

CARL A. SHULTZ.

Witnesses:

THos. F. Evans, 0. R. FULTON.

